{% calendar %}

Fetch a single calendar and either assign it to a variable, output it to the template, or both.
Syntax: {% calendar [new_variable_name] [output_to_template] Guid|"Name" %}

Note: You MUST include at least one of a variable name to assign the calendarto or "output_to_template". You MAY include both, in which case the variable name should precede "output_to_template".